单项选择题
The sea painter of a rescue boat should be led（）.
A.forward and outboard of all obstructions B.forward and inboard of all obstructions C.up and down from the main deck D.to the foremost point on the vessel
单项选择题 The sea anchor shown as item number 14 will NOT（）.
单项选择题 The reference datum used in determining the heights of land features on most charts is（）.
单项选择题 The purpose of the “set” hand on an aneroid barometer is to（）.
